Which of the following is a disadvantage of Monel?
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A.
High cost
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B.
Low strength
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C.
Poor machinability
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D.
Susceptibility to corrosion
Correct Answer:
A. High cost
Explanation:
High cost is the primary disadvantage of Monel. This nickel-copper alloy is significantly more expensive than common materials like carbon steel or stainless steel because it contains a high percentage of nickel, a costly element with volatile pricing. Additionally, specialized production and processing requirements further drive up the total manufacturing expense. While Monel offers exceptional strength and superior corrosion resistance, particularly in marine and acidic environments, its high economic barrier often limits its use to specialized industrial applications where these high-performance properties are absolutely necessary. Although Monel can be difficult to machine due to rapid work hardening, this is considered a technical challenge rather than its fundamental drawback compared to the material cost.
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